package jdkDemo;

import java.util.Set;

import javax.swing.text.StyledEditorKit.ForegroundAction;

import sun.security.krb5.internal.crypto.crc32;

import com.sun.org.apache.xml.internal.security.c14n.helper.C14nHelper;

public class Constom {
	Set<Customer> set=new TreeSet(new AgeComparator);
	Customer customer=new Customer();
	c1.id=2;c2.age=12;
	Customer customer2=new Customer();
	c2.id=1;c2.age=18;
	set.add(c1);
	set.add(c2);
	ForegroundAction(Customer c:set)
	{
		System.out.Println(c.id+“ ”+ c.age);
		c.
	}
	
	age的equals和哈希code方法
	Hashset如何查找 
	查找速度hashset 达到16的五分之四之后扩容
}
